HareHound@aol.com
Mon, 18 Jan 1999 13:51:23 -0500 (EST)
I visited with Deli Sacilotto two years ago, he's back as Director of Research
at Graphic Studio in Tampa (phone:813 974-3503 of FAX 813-974-2579) and he was
doing large (36" square) photogravures using a digitally produced 50% 1200 dpi
stochastic screen. I have not had good luck trying the same myself and have
been too busy to contact him to solve my problem. Perhaps this thread on the
list will get me to do so. I have to admit to not doing systematic tests, and
giving up when the few tests I did failed. I used both a metal halyde lamp and
a black light bank for exposures and both were very slow to etch and broke
down into mongo printing devils. Part of my reason for not pursuing the screen
method is that I have good luck with my favored aquatint material:Zerox toner.
It's melting point is low like rosin and it's so much easier to see on the
plate. Far easier to judge 50% coverage. I even use a piece of film that is
equivalent to 50% to judge the amount of aquatint on the white card placed
next to the plate each time. I also aquatint over the exposed and developed
carbon tissue and heat it in an oven. If I get hold of Deli with any new
information, I will share with all. Janet Flohr
This archive was generated by hypermail 2.0b3 on Sat Nov 06 1999 - 10:06:42